Project Help (making a clock from 4 switches)

xtreme1

Apr 9, 2011
10
Joined
Apr 9, 2011
Messages
10
please have a look at this circuit,

i want this circuit to create a clock pulse every time any of the switch toggle
but the problem is that the clock pulse is generating after two toggles, i have connected a monostable vibrator to create a clock pulse and input it into the three bit counter's clock but the counter is not counting correctly, when i start simulation the first state of the counter is 000 if then i toggle any of the switch the counter remains 000 when the second time i toggle any switch the counter become 011 :(

it should be like this,
the first toggle must change the counter state from 000 to 001, the second toggle must change the counter state from 001 to 010 .....but this is not happening :S

please help me out of it!!



The circuit and multisim file is attahced

3.png

Design1.rar

 

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  • Design1.rar
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Hero999

Oct 28, 2007
2,433
Joined
Oct 28, 2007
Messages
2,433
The lamp won't light with a 1k resistor connected in sereis with it.

 
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